Add tab character into a label

I try to import into a RR label from a web page some results .
I should like that my column are aligned , so i have tried to add some tabs characters into a C# plugin without success.
So i add some space , but it's not very easy to always align !
My c# line is :

You need to have a fixed space font for it to work properly and even then, not always right.

Yep, but I'll disagree on the latter part...you have to use some simple math and there should be no problems. I have done this before, but my usage was to create a txt file for a CL to get nice columns